Safety razor



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IuNlTEu STATES PATENT (OFFICE.

-IPIHILLIE IROFF, OF BROOKLYN, NEW YORK.

SAFETY RAZOR.

Application med June 27,

.vide a novel form of reversab-le blade, Aand to combine therewith a new and easily manipulated securing means. A

A further general object is to provide a cutting blade capable of the most extensive' use without re-sharpening.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had tothe following description and accompanying drawings, and to the appended claims in which the various novel features'of the invention aremore particularly set forth.

Fig. 1 of the' drawings 1s a part side and part sectional view of a safety razor constructed according to the invention, the sectional portion of the view being taken on the linelfl ofFig. 2.

F;ig.2isa front view of the razor.

Fig- 3 is a transverse vertical section on the line 3e-3- of Fig. 1.

Fig.`4 is a detail perspective view of the blade.

As here shown my improved safety razor` comprises al holder in the form of the plate 1() of s uare shape as seen in face view and preferalily having the corners thereof rounded, as shown in Fig. 2. This plate 10 is bowed outwardly as sho-wn from the edges toward the centre causingtheplate to present a convexed outer face which, by reason of the Square shapeof the plate, is substantially of shallow pyramidal'forrn. The edges of this plate form the guard for the. cutting edges of the blade and are rformed with suitable serrations, preferably obtained by cutting the circular notches 11 in theedge of the plate,

to the general plane of the plate as shown in Figs. .1 and 3.

.Toward its centre the holder plate 10 p resents a rearwardly pressed portion 14 which lies approximately in the plane of the pe- Specication of Letters Patent.

the notched `edges of the plate be. -ing preferably given a sharper inclination Patented May 2, 1922.

1921. serial No. 480,532.

. ripheral edge of the plate. At its centre the plate 10 presents a rectangular aperture 15.

which is enclosed by a forwardly extending neck flange 16 formed lon the inner edge o-f the depressed portion 14, leaving an annular channel 17 in the front face of the plate.

The flange 16 has a pair ofl slots 18 *cut in opposite sides thereof, thisange projectin a dista-nce beyond the face of the plateV an serving to properly locate the cutting blade 2() thereon. To the rearwardly recessed plate portion 14 is detachably secured the handle 22 which extends in a line central of and at right angles to the plate 1'0, and is in the form of a tube having out-turned ears 23 on which are studs 24 projecting freely' through suitable apertures .in the holder, as

- shown in Fig. 3.

The cutting blade 20 is of square outline, complementary tothe plate-10, and preferably of a size to have its edge lie in the axes of 'the circular notches 11. This blade has a. square central aperture 25 adapted to re ceive the neck-flange 16 and flanges on a cover plate to be presently described, when the blade is placed on the holder. From two opposed edges ofthis opening 25 a pair of integral flanges 26 are projected at right angles to the general plane of the blade 20 on one side, and from the other: two opposed edges a second pair 'of flanges 27 are projected in an oppositey direction to the langes'26. f

lThe blade 20 is adapted to have either face thereof placed against the holder, the

blade being arched to lit over the arched structure of the holder and being capable of being sprung so as `to have either face thereof t over the holder. To facilitate the springing of the blade, diagonal slots 30 are cut therein for a distance outwardly from the corners of the aperture 25.

.To Asecure the blade 20 onthe holder 10 I provide a cover plate 31 of similar shape to the holder plate 10 but of smaller diameter than the blade 20 and which is formed with a central aperture through which the neckflange 16 projects and has a pair of integral flanges 31 located on opposite side of the said aperture and projecting between and closely engaging the. neck-flange 16 and the flanges on the. blade 20. These flanges 31 have slots 31 therein to receive a pair of hooked latches 32 pivoted at one end on pins 33 fixed in the ears 23 and projecting forwardly within the space enclosed by the neck-flange 16 of the holder, the "hooked ends 32 of these latches being widened and adapted to project through the slots 18 in the flange 16, and into the slots 311- in the cover flange 31. One ofthe pairs of flan es 26, 27 is accommodated in the recess 17 t e ot-her pair projecting forwardly, the cover plate 31 having suitable slots formed therein to receive the said fo-rwardly projecting pair another and extending rearwardly throughl thetubular handle 22. 'This rod 37 has an enlargement 38 adjacent its outer end .which fits snugly 'in the bore of the handle, and is provided at its rear end with a projecting head 39 adapted to bejgrasped to move the portions, thus ensuring the proper` holdingrod.

In the use of my improved safety razor, as will be apparent, the Iblade 20 is attached to the holder by placing it upon the latter, (the head 39 of rod 37 being first pulled out to draw back the latches 32,) placing the cover plate 31 thereover', and then pushing head 39 forwardly, causing the hooks 32v to engage the slots 31, the faces of the hooksl which engage the flanges 26, 27 being eccentric-to the pivot points `of the latches 32 so as to have a. cammmg or wedging action, while the blade 20 is constructed to have a slightly greater concavity than the convexity of the holder so that when in place it will press Aupon the holder toward its marginal of the cutting edges in place. v

Each blade is capable of use on all four edges and may be reversed on the holder by removing it and springing it with the hands, I' j v the other pair of the flanges 26, 27 then being en aged by the hooks 32.

aving thus described my invention what I claim as new and desire to protect by Letters Patent of the United States is as follows:

1. A safety razor comprising a polygonal holder plate presenting a convexed surface, and a complementary blade arched' to engage said convexed surface and capable of being sprung to have either face constitute. the exterior of the arch, a cover and devices projecting inwardly from the cover Aadapted to be engaged by locking means on the holder plate.

2. A safety razor comprising a polygonal holder plate presenting a convexed surface1 a 'dle fixed-thereto, a coverplate, and locking means for said plate having. an' operating element extending rearwardly through said handle, said locking means comprising a pair y of .pivoted latches, and toggle links connected to said latches and said operating ele ment.

4. In a; safety razor, a convexed holder plate having a 'recessed intermediate portion and a central'japerture, a neck-flange projecting forwardly from said plate and surrounding said aperture, and means confined within said neck-flange and adapted to be projected laterally therethrough into the said recessed portion for securing a blade to the holder. Y v

. 5. In a safety razor, a holder plate of shallow pyramidal form having arecessed intermediate portion and a square central aper-v ture, a neck flange projecting forwardly from said plate andsurrounding said aperture, a tubular handlevsec'ured to and pro.-

jecting rearwardly from'saidplate, a rod I slidable in said handle and-having ahead projecting from the rear end of the latter, a pair of toggle links to whichjthe forward end of said rod is connected, and a pair of hooked latches to which the said togglelinks are attached at opposite ends, said latches being adapted to be withdrawn withinthe confines of the said neckange, the latterk1 presenting apertures to receive the hooks on the said latches.

6. A blade for safety razors presenting cutting edges on all sides thereof and' arched from all sides towardthe centre, saidl blade having a square central aperture,'and pairs of oppositely projecting flanges at the sides of said aperture.

7. A blade for safety razors presenting. cutting edges on all sides thereof andv arched fromall sides toward' the centre, said blade havmg a square central aperture,.and pairs of oppositely projecting flanges atth'e sides of said aperture, said blade having slots extending diagonally outward from the corners of the said aperture. n

In testimony whereof I have affixed my signature. a

PHILLiP-.IROFR ico 

